The organisms apparently come in through the nose and penetrate through the cribiform plate into the base of the brain. Infections are rare but interesting since most cases seem to result from swimming or diving in warm fresh water lakes and ponds although sometimes swimming pools have been implicated also. Naegleria and Acanthamoeba are free living fresh water amebas which have been known to cause AMEBIC MENINGITIS. May break through and invade the liver where it may set up AMOEBIC LIVER ABCESS. There is acute pain and tenderness and fever. There is severe dysentery with numerous small stools containing blood, mucus, and necrotic intestinal epithelium. Initial infection is in large intestine with attack on epithelium.
Approximately 5% of US population are ASSYMPTOMATIC CARRIERS of this organism.
Sarcodina - The AMOEBA AMOEBIC DYSENTERY - Caused by Entamoeba histolytica world wide if CYSTS get into food or water. OVERVIEW OF PARASITOLOGY Reading assignment: Please look up all of these in your textbook.
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